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- Title
Research of fiber nonlinear effects in WDM-PON based 5G fronthaul networks.
- Authors
Saleem, Asad; Xu, Yan; Wang, Shuai
- Abstract
In fifth-generation (5G) fronthaul networks, the wavelength division multiplexing passive optical network (WDM-PON) is considered as an important tool to address the advanced transmission requirements. The nonlinear effects occur when multiple wavelengths are transmitted simultaneously in the same optical fiber. In this paper, we investigate the four-wave mixing (FWM) and the cross-phase modulation (XPM) effects by using non-return-to-zero (NRZ), 4-level pulse amplitude modulation (PAM4), and optical duobinary (ODB) modulation formats in WDM-PON-based 5G fronthaul networks. The results show that ODB performs better when it comes to limiting the FWM and XPM effects because of its precoded attribute. Compared to the unpredictable sensitivity penalty based on NRZ and PAM4, the FWM-induced sensitivity penalty using ODB is reduced to 2 dB. Moreover, the XPM-induced sensitivity penalty is measured as 1 dB by adopting ODB, which is almost 5 dB better than NRZ and PAM4 modulation formats.
- Subjects
5G networks; PULSE amplitude modulation; PASSIVE optical networks; WAVELENGTH division multiplexing; FOUR-wave mixing
- Publication
Journal of Nonlinear Optical Physics & Materials, 2023, Vol 32, Issue 2, p1
- ISSN
0218-8635
- Publication type
Article
- DOI
10.1142/S0218863523500182